Finding the Fourth Proportional to 478,278.74, 660,054.62 and 263,418.75
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Solution
The fourth proportional to 478,278.74, 660,054.62 and 263,418.75 is: 363,534.38
Step by Step Solution
- Step 1: Write the proportion equation
478,278.74 : 660,054.62 = 263,418.75 : x - Step 2: Convert to fraction form
478,278.74/660,054.62 = 263,418.75/x - Step 3: Cross multiply
478,278.74x = 660,054.62 × 263,418.75 - Step 4: Simplify right side
478,278.74x = 173,870,761,615.03 - Step 5: Solve for x
x = 173,870,761,615.03/478,278.74 - Step 6: Final answer
x = 363,534.38
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.